#include "stdafx.h"

/*  -- translated by f2c (version 19940927).
   You must link the resulting object file with the libraries:
	-lf2c -lm   (in that order)
*/

#include "hnum_f2c.h"
namespace harlinn
{
    namespace numerics
    {
        namespace SuperLU
        {
            integer idamax_(integer *n, doublereal *dx, integer *incx)
            {


                /* System generated locals */
                integer ret_val, i__1;
                doublereal d__1;

                /* Local variables */
                static doublereal dmax__;
                static integer i, ix;


            /*     finds the index of element having max. absolute value.   
                    jack dongarra, linpack, 3/11/78.   
                    modified 3/93 to return if incx .le. 0.   
                    modified 12/3/93, array(1) declarations changed to array(*)   


    
                Parameter adjustments   
                    Function Body */
            #define DX(I) dx[(I)-1]


                ret_val = 0;
                if (*n < 1 || *incx <= 0) {
	            return ret_val;
                }
                ret_val = 1;
                if (*n == 1) {
	            return ret_val;
                }
                if (*incx == 1) {
	            goto L20;
                }

            /*        code for increment not equal to 1 */

                ix = 1;
                dmax__ = abs(DX(1));
                ix += *incx;
                i__1 = *n;
                for (i = 2; i <= *n; ++i) {
	            if ((d__1 = DX(ix), abs(d__1)) <= dmax__) {
	                goto L5;
	            }
	            ret_val = i;
	            dmax__ = (d__1 = DX(ix), abs(d__1));
            L5:
	            ix += *incx;
            /* L10: */
                }
                return ret_val;

            /*        code for increment equal to 1 */

            L20:
                dmax__ = abs(DX(1));
                i__1 = *n;
                for (i = 2; i <= *n; ++i) {
	            if ((d__1 = DX(i), abs(d__1)) <= dmax__) {
	                goto L30;
	            }
	            ret_val = i;
	            dmax__ = (d__1 = DX(i), abs(d__1));
            L30:
	            ;
                }
                return ret_val;
            } /* idamax_ */
        };
    };
};